Window sill shelf



Jan. 29, 1952 c. A. HART WINDOW SILL SHELF Filed Dec. 9, 1949 Cecil A. Han

Patented Jan. 29, 1952 UNITED STATES FATENT OFFICE WINDOW SILL SHELF Cecil A. Hart, Hackensack. N. J.

Application December 9, 1949, Serial No. 131,983

1 Claim. 1

This invention relates to a general utility shelf for household use in which manufacturers and users will find their respective requirements and needs fully met, aptly contained and efiectually available.

More particularly, the invention has to do with a simple, practical and easily attachable and detachable shelf which is readily applicable to a wooden or equivalent window sill and which is especially, but not necessarily, adapted to support a portable electric fan in alignment with a window opening.

In carrying out a preferred embodiment of the invention, the shelf takes the form of a rigid rectangular plate of metal or equivalent material, said plate having marginally arranged upstanding fan retaining elements, having depending detents along one edge for anchoring in the window sill and having, in addition, a set screw mounted for operation from an opposite edge said set screw serving to clamp the shelf in position.

Other objects and advantages will become more readily apparent from the following description and the accompanying illustrative drawings.

In the drawings:

Figure 1 is a fragmentary perspective view of a window, showing the improved window sill shelf and the manner in which the same is constructed and used.

Figure 2 is a bottom plan view of the shelf per se with parts in dotted lines.

Figure 3 is a cross-section on the line 33 of Figure 1, looking in the direction of the arrows.

In the drawings and particularly in Figure l,

the numeral 6 designates a sash which is slidably mounted in a frame structure 8. The window sill is denoted by the numeral ill. The attachment shelf as a unitary structure is denoted at 12. As before stated, the shelf is characterized by a rectangular fiat plate of metal or equivalent material 14. The inner end portion of this is frested upon the window sill and thus primarily 1 supported by said window sill. Across what may be called the outward edge, a flange is formed,

and the end portions of this are diagonally slit,

and prevents an electric fan (not ShQWI when situated on the shelf, from becoming accidentally dislodged from the shelf and to thus fall out of the open window. As a further safeguard, ad ditional marginal lugs 26, 28 and 3|] are provided on the three marginal edges shown in Figure 1. These lugs in conjunction with the flange 20 provide an effective guard which, under ordinary circumstances, will prevent the base of the fan from vibrating and becoming accidentally displaced from the shelf. A block-like mount 32 is welded or otherwise secured to the overhanging portion of the shelf. This mount has a screw-threaded bore 44 formed therein to accommodate the screwthreaded portion 34 of the set screw 36. The latter has a suitably roughened finger-grip 38 at one end and a swivelly mounted clamping head 40 at its inner end. The head 4:] is adapted to be pressed against the window sill surface and when adjusted functions, in conjunction with the detents 22 and 24, in satisfactorily and reliably holding the shelf on the window sill.

It is felt that the several figures constituting the drawings, when considered singly and collectively, will give the reader a clear understanding of the details involved and the manner in which the shelf is appropriately used. It will be understood, in this connection, that the shelf is in no sense restricted to serve as a support for an electric fan. However, electric fans are often desired in kitchens and elsewhere to either exhaust air through the open window or turned in such a way as to draw the air in from the outside for ventilating. The shelf serves as an excellent support to permit an electric fan to be so used. It will be clear, however, that such a shelf becomes a multiple purpose household device inasmuch as it may be employed for supporting potted flowers, various kitchen utensils, and so on.

It is thought that persons skilled in the art to which the invention relates will be able to obtain a clear understanding of the invention after considering the description in connection with the drawings. Therefore, a more lengthy description is regarded as unnecessary.

Minor changes in the shape, size and arrangement of details coming within the field of invention claimed may be resorted to in actual practice, if desired.

Having described the invention, what is claimed as new is:

A window sill attachment particularly useful in supporting an electric fan from a window sill and in alignment with a window opening comprising a fiat rectangular plate a substantial portion 3 of which is adapted to rest firmly atop the window sill, said plate being provided along an outer marginal edge with a vertical upstanding flange, said flange being uninterrupted from end-to-end and constituting a reinforcing member as well as a stop element for the base of the stated fan, said plate being provided on the same edge with depending detents having pointed portions adapted to be embedded in an edge portion of the stated sill, said plate being provided along other marginal edges with upstanding spaced lugs, a set screw, and means for mounting the set screw beneath and in parallelism with said plate.

CECIL A. HART.

4 REFERENCES CITED UNITED STATES PATENTS Number I Name Date 1,108,692 Burd Aug. 25, 1914 1,224,127 Bartlett May 1, 1917 1,288,560 Gordon Dec. 24, 1918 1,360,180 Congdon Nov. 23, 1920 1,553,441 Grunwald Sept. 15, 1925 1,558,977 Gray Oct. 27, 1925 1,584,575 Waelti May 11, 1926 2,063,289 Alusas Dec. 8, 1936 

